Valve



Parent-ed sept.' is, 'wat i l 823 UNITED STATES PATENT OFFICE WILHELMSOUPAL, OF MATZELSDORF, NEAR NE'ULFGBACH, AUSTRIA 'VALVE Applicationtiled August 8, 1930, Serial No. 474,022, and in Austria May 28, 1930.

Hit-herto fluid-tight valves, for instance means for the obtention ofpressure upon the rotary slide valves With cork or like packing packingdisc whilst maintaining axial imwlnch are used for controlling the fuelsupmobility of the locked parts, this being atply of motor car engines,could not be locked tained according to the invention by conin theclosed position, and for this reason necting the lock and valve parts soas to 55 the building in of su'ch valves into the fuel couple them forrotation but allowing play conduit of a motor car engine did not preventin axial direction, and on the other hand by their theft. providing inthe locking position of the lock The present invention consists inmaking also for a locking of the parts of thecasing rotary slide valvesadapted to be locked in relatively to each other. f their closedpositions by the provision of a The lock used is preferably of thepinlock connected with the slide valve. The tumbler type or acylindrical Yale lock which invention further consists in a particularpermits of a compact construction and conconstructional form of afluid-tight valve by nection with the valve body, the outer lock which areliable locking in the closed posicasing constituting in the form of asleeve, Q5 tion is ensured, dismounting of the parts of the coverportion of the valve casin Whilst tlip valve casing to enable defectivepacking the central rotary cylinder serves or turnparts to be exchangedis rendered possible ing the valve body'with which it is loosely in theunlocked position only, whilst being coupled in the manner abovereferred to.

2 Yimpossible in the-closed position of the valve, The subject of theinvention is shown in a 70 ,vv-hereby unauthorized starting of theengine constructional example in the drawings, Fig.

or theft of the vehicle is prevented. l showing a vertical sectionthrough the Valves for fuel conduits adapted t0 be valve, the valvebeing shown inthe open posilocked, are already known. These valves tion,Fig. 2 is a side view partly in section, v

however are not Huid-tight. The difficulties Fig. 3 a'horizontal sectionon IIL-III, Fig. 75

' which hitherto prevented reliable locking of 4 a, Similar Section onIV-IV of Fig. 1.'

Lliuid-tight valves, are due to the fact that The valve consists of atwo-part valve cas- On the one hand the Cork or other packing ing, inthe cylindrical recess b of which the members which are required forkeeping the rotary slide valve 0 is rotatably fitted. The

39 valve tight must be subjected to a certain conduit bore Z does notextend centrally 80 pressure if they are to pack effectively, throughthe valve casing, butthe latter has Whilst on the other hand the membersof the in its core a solid part d and the bore of the lock Which areintended to effect tlie locking conduit is bent at right angles both infront of the valve must be positioned exactly relaand behind this corepiece and terminates in tively to each other and do not permit a playtwo openings f, g in the base of the cylin- 85 or a relativedisplacement in the axial direcdrical recess b of the valve casing. Theslide tion for the purpose of compressing the packvalve c contains abore 71. bent at an angle on ing members, without endangering the pre-Vboth ends, which in the open position of the cise action of the lock; afurther di'licultyis valve bridges and puts into communicatlon due tothe fact that as previously mentioned, the two openings f, g. Betweenthe'casing 90 the owner of the car must have always access and the lowerend of the rotary valve lies a` to the interior of the valve in order tobe` .plane packing disc s of cork having perforaable to exchange apacking member subjecttions corresponding to the openlngs f, g.

ed to rapid wear, and that consequently, the The packing disc isprovided upon lts under valve casing must be constructed in two sidewith a recess y which engages a corre- 95 parts which parts however,must be connected spending projection of the seatlng surface togetherundetachably in the closed position whereby the pack disc s is held inits position of the valve. Y 'The construction forming the againstrotation. The lower part ofthe valve subject of the present inventionovercomes casing is designated by a'. It possesses an upthesediiiculties by providing on the one hand wardly projecting hollowcylindrical exten- `peripherally upon an arc of 90 with a recess sion 'vwith internal threading. The lock mechanism is constructed as a Yalelock and may be made entirely independently of the valve proper. Thelock comprises a cylindrical lock casing 7c, the tumbler cylinder,- inwhich the revolving cylinder m is mounted centrally rotatably andexactly fitting. This cylinder has upon its lower end a conicalprojection 1o by means of which it is held axially in the lock casing bymeans of small screws al. In the lock casing are provided bores orchambers r for the reception of the tumbler pins t and pressure springsu, said bores being closed at the outer end by screw or rivet-headswhich are ground down to lie fiush with the outer surface of the casingc, whilst in the revolving cylinder there are provided the correspondingbores r1 for the reception of the pressure pins t.. The last mentionedbores terminate internally in a central slot w for the reception of thekey S. For a purpose to be explained later on, the lock casing possessesalso three bores B terminating in the base, in which strong helicalsprings act upon pressure pins Z which are pressed out downwards andslide upon the surface of 'the slidevalve c.

The connection of the lock with the valve to-a coherent unit isaccording to the invention carried out in such a. manner that on the onehand the lock casing c constitutes the member covering the valve casing,by being screwed with its reduced end into a cylindrical extension v ofthe valve casing a, and that on the other hand'the revolving cylinder mof the lock is coupled with the slide member of the valve as regardsrotation so that it constitutes as it were the upper extension pivot ofthe slide valve. the slide valve being thus adapted to be adjusted bythe former and locked bv a key S. The pins Z pressing upon the slideeffect at the same time the required compression of the cork disc swithout anv axial displacement of the revolving cylinder being required.The coupling is effected by coupling pins st, which are arranged uponthe base of the revolving cylinder m and engage corresponding holes o intheslide valve c.

The slide valve c is moreover provided z' in which slides a stop pin a:fixed to the casing a. The arrangement of the recess and the locking'pin is made in such a manner that in the closing position of the valvethe pin acts as a stop against the recess and thus prevents effectivelyanv unscrewing of' the upper lock casing in the closed position of thevalve. Thefmovement of the slide valve during its transition from theupper into the -closed position is simultaneously limited by the stoppin and the recess of the slide valve.

The operation; is as follows: When the valve is in the closed position,and consequentlyl the part c in a position at right angles to that shownin Fig. 1, then the bores 1', r1 register. The tumbler pins t projectinto the bores r1 and lock the part m against rotation, and consequentlylock the valve c in the closed position. The stop pin contacts with theend of the recess z', and as the slide valve is coupled to the revolvingcylinder andasfthe latter is locked b v the tumbler pins, unscrewing ofthelock casing llc from the valve casing a is impossible. If in thisposition the key S is inserted, it positions by means of the pressurepins t1 the tumbler pins in such a manner that they are just pressed out.of the bores r1 and permit rotation of the revolving cylinder 'ml andconsequently also of the valve o into the open position shown in Fig. l.After. the completion of this quarter revolutionwhich is limited by thepin .'v (Fig. 3), the key cannot be Withdrawn (Withdrawal of the key isonly possible in the locked closed positionof the valve). The lockcasing can be unscrewed from the valve casing ain the open position, ifan exchange of the cork packing disc is required. i

1. The combination of: a fuel conduit; a valve casing portion on saidconduit; a resillent valve seat packing in said valve casing portion; arotary slide valve rotatable upon said resilient packing; a second valvecasing' portion detachably connected to said first valve casing portionto enable said valve to be inspected; al key operable lock of thetumbler pin type arranged in said detachable casing portion and having arevolving cylinder portion coupled with said valve so as to turn saidvalve but permit of axial movement of the valve; means for pressing saidvalve against said packing; and means for preventing detaching of thedetachable valve casing portion from the other casing portion intheclosed position of the valve.

2. The combination of: a fuel conduit; al l valve casing portion on saidconduit; a, second valve casing portion screwed into the first valvecasing portion; a rotary slide valve; a key operated lock of the tumblerpin type arranged within the detachable valve casing portion and havinga key operated 'revolving cylindrical member said cylindrical memberbeing coupled to the rotary slide valve,` said lock being arranged tolock the said valve in the closed position; and means for preventingunscrewing of the secondv having a cylindrical cavity; a resilient valveseat in the first valve casing portion; a ro tary slide valve arrangedin the cylindrical cavity of the two valve casing portions and slldableupon said resilient valve seat; means `for resiliently pressing saidrotary slide valve against said resilient valve seat, said means beingarranged in the second valve casing portion; a lock of the tumbler pintype arranged in said second valve casing portion and having a centralrevolving cylindrical member adapted to be operated by a key, saidrevolving cylindrical member being so coupled with said rotary valve asto carry same peripherally but permit axial movement of the valveindependent of said cylindrical member; said rotary slide valve having aperipheral groove and said detachable valve casing portion having apinlengaging said groove, for the purpose of limiting the rotary movementof the valve and preventing unserewing of the removable valve casingportion in the closed condition of the valve.

Signed at Vienna, Austria, this 24th day of July, 1930.

WILHELM SOUPAL. i

